Plant growth lamp



FIG. 1 is a front elevational view of a plant growth lamp showing my newdesign;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view thereof;

FIG. 6 is another perspective view thereof;

FIG. 7 is an enlarged view of portion 7 shown in FIG. 5 ;

FIG. 8 is an enlarged view of portion 8 shown in FIG. 5 ;

FIG. 9 is an enlarged view of portion 9 shown in FIG. 5 ;

FIG. 10 is an enlarged view of portion 10 shown in FIG. 5 ;

FIG. 11 is an enlarged view of portion 11 shown in FIG. 6 ;

FIG. 12 is an enlarged view of portion 12 shown in FIG. 6 ;

FIG. 13 is an enlarged view of portion 13 shown in FIG. 6 ; and,

FIG. 14 is an enlarged view of portion 14 shown in FIG. 6 .

The broken lines in the drawings depict boundaries of the enlargedportions and form no part of the claimed design.

CLAIM The ornamental design for a plant growth lamp, as shown anddescribed.